Răspuns:
-5/2
Explicație pas cu pas:
[tex]-7*|x+3|=5*|x+3|-6[/tex]
[tex]-7|x+3|-5|x+3|=-6\\-12*|x+3|=-6\\|x+3| = \frac{1}{2}\\=>x+3=\frac{1}{2}\\ x=-\frac{5}{2}\\=>x+3=-\frac{1}{2}\\ x+3=-\frac{7}{2}[/tex]
-7*|x+3|=5*|x+3|-6
-7|x+3|=5|x+3|-6
-7|x+3|-5|x+3|=-6
-12|x+3|=-6 /:(-12)
-|x+3|= -6/-12
|x+3|= 1/2
Primul caz :
x+3>0
x> -3
x+3=1/2
x= 1/2-3
x= 1/2-6/2
x= - 5/2
Al doilea caz:
x+3<0
x< - 3
x+3= -1/2
x= -1/2-3
x= -1/2-6/2
x= -7/2
